Machine control device

Details Machine control device Machine control device

1979-06-01

1982-12-21

Scott, James R.

Electricity: circuit makers and breakers

Special application

Feeler moves into detecting contact with object

H01H 316, F16D 900

Patent

active

043651224

ABSTRACT:
An improved machine control for sensing an obstruction in the path of a machine tool and preventing movement of the tool along its path. A sensor is mounted on a movable support rod and adjustably positioned to move along a path coaxial with the path of the tool in order to sense any obstruction in a work area. The movable support rod is constructed to allow gravity fall of the sensor into the work area and to cause actuation of a switching circuit allowing machine tool movement if no obstructions are sensed. A spring-biased arm coupled to a rotary solenoid retains the movable support rod in a rest position. Upon actuation, the solenoid rotates the arm so that gravity causes the support rod to fall and the sensor to move into the work area. The elements of the machine control are mounted to a plate which may be removably attached to various types of machines.

REFERENCES:
patent: 3315049 (1967-04-01), Cain
patent: 3487182 (1969-12-01), Grundy
patent: 3496315 (1970-02-01), Giese, Jr. et al.
patent: 3939314 (1976-02-01), Loeser

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